sure, we have some stock photographs in the office of Headlight streaks (but google works too), which i isolated (by contrasting the image and then making a white selection in the RGB channels) and then overlay in the render and set the layer to Screen or Color Dodge (add).

The thing i like about headlight streaks is that it doesn't so much try to emulate a real photo but rather an impressionistic expression of car circulation.

i had asked thomthom to make that plugin so one could make everything black then turn the material on the object you wanted white so when u render u get a black and white selection redner, but he had refined the script after to make that automatic, in max there is another script that does a similar thing called Render Mask, but thats just click and render very handy.

Oh, sometimes it is in front of my eyes but... Making all geometry black (blackout) and then just painting the object you want to mask white. That is so much easier - thanks for this one!Also thanks for the tut on light streaks, I'll remember this for my next night scene.cheersalex

Thanks a lot freeagent: your Ps tips are always a pleasure to read. And to learn Wonderful images: nothing too exciting after render pass only, but really quality images after the postpro phase. This always reminds me of the importance of ALL the steps of the image creating process. A barbaric postpro would have surely turned the starting render to something terrible.

Beautifull renders!!!...I mean...WOW!!!...., may I ask what do you render and what do you add in post processing??? Basically your workflow of adding elements....I've read that you added car in Vray but what about people trees, lights...etc...and lastlly, how much time it took for complete a single picture??? (workflow time if you prefer...)

On a side note, I'm a tad surprised that such buildings are approved in some areas - we could never get away with such prominant car parking to a residential building. In nearly all cases car parking MUST be obscured, the pedestrian and vehicle entries separated and significant landscaping to the forecourt. It is a nice looking building from the floor level up but a little spoilt by what would be a mess at the base!

I would ask mate, did the client want for these views? Personally if this was for the seeking of either approvals or sales I'd probably aim to select an angle to lessen the visual impact of the parking!

in regards to the blackout script, another method (if you use VRAY as a renderer) is to select a couloured MATERIAL ID (such as white) and ensure you include it as one of your VFB channels... You can use this method for as many materials as you like in the scene for EASY selection in POST PRO....